Test B: The Power Seat Does Not Move Horizontally/Vertically - Driver

PINPOINT TEST B: THE POWER SEAT DOES NOT MOVE HORIZONTALLY/VERTICALLY - DRIVER

B1:

B1-B3:

B3-B4:

B4 Continued:

Normal Operation
The driver seat control switch is powered by battery voltage on circuit 517 (BK/WH) and is supplied ground on circuit 57 (BK). When pressed, the seat control switch supplies that voltage and ground to a power seat track motor to move the seat. When pressed in the opposite direction, the seat control switch reverses the polarity to that same power seat track motor, which moves the seat in the opposite direction. There are 3 power seat track motors that combine to move the seat horizontally (FORWARD/REVERSE) and vertically (front UP/DOWN and rear UP/DOWN).

Possible Causes
A driver power seat that does not move horizontally and/or vertically can be caused by:
- a faulty circuit.
- a faulty seat control switch.
- a faulty seat track motor.